Roll-holder.



A. P. F. PICO.

ROLL HOLDER.

APPLICATION FILED on. 3. 1914.

Patented Feb. 27, 1917.

WITNESSES.

INVENTOI? a fi/ber/R/TP/ba was 1 ATTORNEY ALBERT P. F. PIOO, OF KANSASCITY, MISSOURI.

ROLL-HOLDER.

Specification of Letters Patent.

Patented Feb. 27, 1917.

Application filed October 3, 1914. Serial No. 864,891.

To all whom it may concern:

Be it known that I, ALBERT P. F. Prco, a citizen of the United States,residing at Kansas City, in the county of Jackson and State of Missouri,have invented certain new and useful Improvements in Roll-Holders; and Ido declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters and figures of referencemarked thereon, which form a part of this specification.

My invention relates to a roll holder and more particularly to a deviceof that character for use in autographic registers or like machines; theprincipal object of the invention being to provide a structure of thischaracter whereby web or ribbon strip rolls may be supported in a mannerto permit the strip to be drawn freely from the roll, but which willobviate slack that might interfere with proper registration of the stripin the machine.

In accomplishing this object I have provided improved details ofstructure, the preferred forms of which are illustrated in theaccompanying drawings, wherein:

Figure I is a transverse, vertical section of an autographic registerequipped with my im'proved roll holder.

Fig. II is a detail perspective view of one of the holder members.

Fig. III is a reverse view of the same.

Referring more in detail to the drawings:

1 designates the base of the device and 2 skeleton side members of anydesired construction, which are fixed to the base 1 and connected attheir ends by cross rods 3; the preferred construction of the sidemembers comprising vertical bars 4 which are bowed outwardlyintermediate the top and bottom rails 56 to enhance the appearance ofthe structure and provide sockets 7 for receiving the ends of the stripmountings; the bars 4 that support the mounting members being preferablyprovided with apertures 9 through which the mounting shafts may project,and with spaced arms 10 for supporting said shaft.

Each of the arms 10 comprises a bearing member 12 which extendsoutwardly toward the adjacent rib 4 but is spaced therefrom, the bearingchannel being concentric with the aperture 9 in said rib, to permit playof a shaft bead between the end of the bearing and the rib and thewithdrawal of the shaft through said aperture. I

Revolubly mounted in each of the bearings 12 is a stub shaft 13, theinner end of which carries a disk 14 which is rigidly secured to the endof the shaft and is preferably dished at its edges to form an outturnedperipheral flange 15; the central portion of the disk being alsoprovided with a concave button 16 which is adapted for projection intothe core of a rolled strip, as will presently be more fully described.

The outer end of the shaft 18 is threaded and carries a nut 17 which isadapted for engaging the end of the bearing 12 to limit the inwardprojection of the disk under tension of a spring 18, which surrounds theshaft and bears against the inner face of the arm and against the innerface of the disk to normally tension the disk inwardly against the endof a roll and hold the nut against the end of the bearing; it beingapparent that the disk may be moved outwardly against the tension of thespring to seat or unseat the roll, and that when the disk is movedoutwardly, the nut on the end of its shaft is projected through theopening 9 in the bowed part in the side of the machine frame. The spring18 is preferably helical in order that it may lie flat against the arm10 when collapsed, and allow the friction disk to occupy the leastpossible space in the machine.

It is apparent that when the disk is to be removed from the machine, theshaft may be moved outwardly to expose the nut at the side of the frame,and that when the nut is removed, the shaft may be drawn from itsbearings, although under ordinary conditions the end of the shaft isprotected by the side of the machine to prevent its being tampered with.

In using the device, assuming that the shafts 13 are mounted in theframe, as described, the rolled strip is placed in its mounting byforcing the ends of the roll against the convex faces of the disks 14:,so that the disks are pushed back against the tension of their springsuntil. the roll centers on the disks and the bosses 16 are projectedinto the center opening of the roll. The strip may then be used from theroll and as it is used it is drawn forwardly, revolving the roll on itsmounting on the disks and their buttons 16, the buttons holding the rollin place, but the springs being sufficiently weak to permit the roll toturn on its mounting.

When the strip has become exhausted, or it is desired to replace thesame, the roll is pulled from its mounting, the ends of the rollpressing against the convex bosses on the disks to push the disksoutwardly against the tension of their springs and thereby permittingthe removal of the roll from between the paired mountings.

It is apparent that with my improved mounting, the roll is heldtensioned to obviate a slack, and that the same tension is maintainedfor any diameter of the strip.

It is also apparent that with this construction, the roll may be easilyand quickly in serted or removed from the machine, and

that the mountings themselves may be easily and quickly inserted into orremoved from the side frames.

Having thus described my invention, what a of aroll clamp comprising apair of shafts journaled in said bearings, a disk mounted on the innerend ofeach shaft and having a retaining knob centrally disposed on itsinner face, a nut on the outer end of each shaft, and a helical springwound about said shaft to engage said bearing and disk, for the purposeset forth.

3. The combination with a frame, of a roll clamp comprising apair ofshafts slidably journaled in the frame, a disk mounted on the inner endof each shaft and having an outturned outer edge and a central roundedretaining knob on its inner face adapted for seating within a. rollcore, and means for yieldingly tensioning said disks against aninterposed roll.

at. The combination with paired bearings, of a roll clamp comprising apair of shafts journaled in said bearings, a disk mounted on the innerend of each; shaft and having outturned outer edges and a retaining knobcentrally disposed on its inner face, a nut on the outer end of eachshaft, and a spring wound about said shaft to engage said hearing anddisk, for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

ALBERT P. F. PICO. Vitnesses LYNN A. ROBINSON, LETA E. COATS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patent Washington, D. 0.

